物理学报2012，Vol.61Issue(3)：369-374,6.
电子束诱导单壁碳纳米管不稳定性的新观察
New observations for electron beam-induced instability of single-wall carbon nanotube
摘要
Abstract
The nanoinstability of single-wall carbon nanotube（SWCNT） under electron beam irradiation is systematically investigated by in-situ transmission electron microscopie observation at room temperature.Under the same irradiation condition,it is found that with the increase of irradiation time（or electron dose）,the SWCNT whose two ends are fixed at ropes of nanotubes shrinks in its radial direction with an increasingly faster rate;the curved SWCNT is more instable than the straight one with the same diameter;the SWCNT with a free capped end but the other end fixed at a rope of nanotubes shrinks in the axial direction but almost keeps its diameter unchanged.All experimental phenomena could be well accounted for by new concepts of the nanocurvature of SWCNT and by the electron beam-induced athermal activation.关键词
电子束辐照/单壁碳纳米管/纳米曲率效应/非热激活效应Key words
electron beam irradiation/single-wall carbon nanotube/nanocurvature effect/athermal activation effect分类
信息技术与安全科学引用本文复制引用
李论雄,苏江滨,吴燕,朱贤方,王占国..电子束诱导单壁碳纳米管不稳定性的新观察[J].物理学报,2012,61(3):369-374,6.基金项目
国家科技计划国际科技合作与交流专项 （）
国家重点基础研究发展计划 （）
国家自然科学基金 （）
教育部高等学校博士学科点专项科研基金（批准号：20100121110023）资助的课题 （）
